WSL2-Linux-Kernel/drivers/gpu/drm/omapdrm/omap_plane.c

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/*
* drivers/gpu/drm/omapdrm/omap_plane.c
*
* Copyright (C) 2011 Texas Instruments
* Author: Rob Clark <rob.clark@linaro.org>
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <drm/drm_atomic_helper.h>
#include "omap_dmm_tiler.h"
#include "omap_drv.h"
/* some hackery because omapdss has an 'enum omap_plane' (which would be
* better named omap_plane_id).. and compiler seems unhappy about having
* both a 'struct omap_plane' and 'enum omap_plane'
*/
#define omap_plane _omap_plane
/*
* plane funcs
*/
#define to_omap_plane(x) container_of(x, struct omap_plane, base)
struct omap_plane {
struct drm_plane base;
int id; /* TODO rename omap_plane -> omap_plane_id in omapdss so I can use the enum */
const char *name;
struct omap_overlay_info info;
/* position/orientation of scanout within the fb: */
struct omap_drm_window win;
bool enabled;
/* last fb that we pinned: */
struct drm_framebuffer *pinned_fb;
uint32_t nformats;
uint32_t formats[32];
struct omap_drm_irq error_irq;
};
/* update which fb (if any) is pinned for scanout */
static int omap_plane_update_pin(struct drm_plane *plane)
{
struct omap_plane *omap_plane = to_omap_plane(plane);
struct drm_framebuffer *pinned_fb = omap_plane->pinned_fb;
struct drm_framebuffer *fb = omap_plane->enabled ? plane->fb : NULL;
int ret = 0;
if (pinned_fb == fb)
return 0;
DBG("%p -> %p", pinned_fb, fb);
if (fb) {
drm_framebuffer_reference(fb);
ret = omap_framebuffer_pin(fb);
}
if (pinned_fb)
omap_crtc_queue_unpin(plane->crtc, pinned_fb);
if (ret) {
dev_err(plane->dev->dev, "could not swap %p -> %p\n",
omap_plane->pinned_fb, fb);
drm_framebuffer_unreference(fb);
omap_plane->pinned_fb = NULL;
return ret;
}
omap_plane->pinned_fb = fb;
return 0;
}
static int omap_plane_setup(struct omap_plane *omap_plane)
{
struct omap_overlay_info *info = &omap_plane->info;
struct drm_plane *plane = &omap_plane->base;
struct drm_device *dev = plane->dev;
struct drm_crtc *crtc = plane->crtc;
int ret;
DBG("%s, enabled=%d", omap_plane->name, omap_plane->enabled);
/* if fb has changed, pin new fb: */
ret = omap_plane_update_pin(plane);
if (ret)
return ret;
dispc_runtime_get();
if (!omap_plane->enabled) {
dispc_ovl_enable(omap_plane->id, false);
goto done;
}
/* update scanout: */
omap_framebuffer_update_scanout(plane->fb, &omap_plane->win, info);
DBG("%dx%d -> %dx%d (%d)", info->width, info->height,
info->out_width, info->out_height,
info->screen_width);
drm: omapdrm: fix compiler errors Regular randconfig nightly testing has detected problems with omapdrm. omapdrm fails to build when the kernel is built to support 64-bit DMA addresses and/or 64-bit physical addresses due to an assumption about the width of these types. Use %pad to print DMA addresses, rather than %x or %Zx (which is even more wrong than %x). Avoid passing a uint32_t pointer into a function which expects dma_addr_t pointer. drivers/gpu/drm/omapdrm/omap_plane.c: In function 'omap_plane_pre_apply': drivers/gpu/drm/omapdrm/omap_plane.c:145:2: error: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'dma_addr_t' [-Werror=format] drivers/gpu/drm/omapdrm/omap_plane.c:145:2: error: format '%x' expects argument of type 'unsigned int', but argument 6 has type 'dma_addr_t' [-Werror=format] make[5]: *** [drivers/gpu/drm/omapdrm/omap_plane.o] Error 1 drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_get_paddr': drivers/gpu/drm/omapdrm/omap_gem.c:794:4: error: format '%x' expects argument of type 'unsigned int', but argument 3 has type 'dma_addr_t' [-Werror=format] drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_describe': drivers/gpu/drm/omapdrm/omap_gem.c:991:4: error: format '%Zx' expects argument of type 'size_t', but argument 7 has type 'dma_addr_t' [-Werror=format] drivers/gpu/drm/omapdrm/omap_gem.c: In function 'omap_gem_init': drivers/gpu/drm/omapdrm/omap_gem.c:1470:4: error: format '%x' expects argument of type 'unsigned int', but argument 7 has type 'dma_addr_t' [-Werror=format] make[5]: *** [drivers/gpu/drm/omapdrm/omap_gem.o] Error 1 drivers/gpu/drm/omapdrm/omap_dmm_tiler.c: In function 'dmm_txn_append': drivers/gpu/drm/omapdrm/omap_dmm_tiler.c:226:2: error: passing argument 3 of 'alloc_dma' from incompatible pointer type [-Werror] make[5]: *** [drivers/gpu/drm/omapdrm/omap_dmm_tiler.o] Error 1 make[5]: Target `__build' not remade because of errors. make[4]: *** [drivers/gpu/drm/omapdrm] Error 2 Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-07-12 13:53:41 +04:00
DBG("%d,%d %pad %pad", info->pos_x, info->pos_y,
&info->paddr, &info->p_uv_addr);
dispc_ovl_set_channel_out(omap_plane->id,
omap_crtc_channel(crtc));
/* and finally, update omapdss: */
ret = dispc_ovl_setup(omap_plane->id, info, false,
omap_crtc_timings(crtc), false);
if (ret) {
dev_err(dev->dev, "dispc_ovl_setup failed: %d\n", ret);
goto done;
}
dispc_ovl_enable(omap_plane->id, true);
done:
dispc_runtime_put();
return ret;
}
int omap_plane_mode_set(struct drm_plane *plane,
struct drm_crtc *crtc, struct drm_framebuffer *fb,
int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
unsigned int src_x, unsigned int src_y,
unsigned int src_w, unsigned int src_h)
{
struct omap_plane *omap_plane = to_omap_plane(plane);
struct omap_drm_window *win = &omap_plane->win;
win->crtc_x = crtc_x;
win->crtc_y = crtc_y;
win->crtc_w = crtc_w;
win->crtc_h = crtc_h;
win->src_x = src_x;
win->src_y = src_y;
win->src_w = src_w;
win->src_h = src_h;
return omap_plane_setup(omap_plane);
}
int omap_plane_set_enable(struct drm_plane *plane, bool enable)
{
struct omap_plane *omap_plane = to_omap_plane(plane);
if (enable == omap_plane->enabled)
return 0;
omap_plane->enabled = enable;
return omap_plane_setup(omap_plane);
}
static int omap_plane_update(struct drm_plane *plane,
struct drm_crtc *crtc, struct drm_framebuffer *fb,
int crtc_x, int crtc_y,
unsigned int crtc_w, unsigned int crtc_h,
uint32_t src_x, uint32_t src_y,
uint32_t src_w, uint32_t src_h)
{
struct omap_plane *omap_plane = to_omap_plane(plane);
int ret;
omap_plane->enabled = true;
/* omap_plane_mode_set() takes adjusted src */
switch (omap_plane->win.rotation & 0xf) {
case BIT(DRM_ROTATE_90):
case BIT(DRM_ROTATE_270):
swap(src_w, src_h);
break;
}
/*
* We don't need to take a reference to the framebuffer as the DRM core
* has already done so for the purpose of setting plane->fb.
*/
plane->fb = fb;
plane->crtc = crtc;
/* src values are in Q16 fixed point, convert to integer: */
ret = omap_plane_mode_set(plane, crtc, fb,
crtc_x, crtc_y, crtc_w, crtc_h,
src_x >> 16, src_y >> 16,
src_w >> 16, src_h >> 16);
if (ret < 0)
return ret;
return omap_crtc_flush(plane->crtc);
}
static int omap_plane_disable(struct drm_plane *plane)
{
struct omap_plane *omap_plane = to_omap_plane(plane);
omap_plane->win.rotation = BIT(DRM_ROTATE_0);
omap_plane->info.zorder = plane->type == DRM_PLANE_TYPE_PRIMARY
? 0 : omap_plane->id;
if (!omap_plane->enabled)
return 0;
/* Disabling a plane never fails. */
omap_plane->enabled = false;
omap_plane_setup(omap_plane);
return omap_crtc_flush(plane->crtc);
}
static void omap_plane_destroy(struct drm_plane *plane)
{
struct omap_plane *omap_plane = to_omap_plane(plane);
DBG("%s", omap_plane->name);
omap_irq_unregister(plane->dev, &omap_plane->error_irq);
drm_plane_cleanup(plane);
kfree(omap_plane);
}
/* helper to install properties which are common to planes and crtcs */
void omap_plane_install_properties(struct drm_plane *plane,
struct drm_mode_object *obj)
{
struct drm_device *dev = plane->dev;
struct omap_drm_private *priv = dev->dev_private;
if (priv->has_dmm) {
struct drm_property *prop = dev->mode_config.rotation_property;
drm_object_attach_property(obj, prop, 0);
}
drm_object_attach_property(obj, priv->zorder_prop, 0);
}
int omap_plane_set_property(struct drm_plane *plane,
struct drm_property *property, uint64_t val)
{
struct omap_plane *omap_plane = to_omap_plane(plane);
struct omap_drm_private *priv = plane->dev->dev_private;
int ret;
if (property == plane->dev->mode_config.rotation_property) {
DBG("%s: rotation: %02x", omap_plane->name, (uint32_t)val);
omap_plane->win.rotation = val;
} else if (property == priv->zorder_prop) {
DBG("%s: zorder: %02x", omap_plane->name, (uint32_t)val);
omap_plane->info.zorder = val;
} else {
return -EINVAL;
}
/*
* We're done if the plane is disabled, properties will be applied the
* next time it becomes enabled.
*/
if (!omap_plane->enabled)
return 0;
ret = omap_plane_setup(omap_plane);
if (ret < 0)
return ret;
return omap_crtc_flush(plane->crtc);
}
static const struct drm_plane_funcs omap_plane_funcs = {
.update_plane = omap_plane_update,
.disable_plane = omap_plane_disable,
.reset = drm_atomic_helper_plane_reset,
.destroy = omap_plane_destroy,
.set_property = omap_plane_set_property,
.atomic_duplicate_state = drm_atomic_helper_plane_duplicate_state,
.atomic_destroy_state = drm_atomic_helper_plane_destroy_state,
};
static void omap_plane_error_irq(struct omap_drm_irq *irq, uint32_t irqstatus)
{
struct omap_plane *omap_plane =
container_of(irq, struct omap_plane, error_irq);
DRM_ERROR_RATELIMITED("%s: errors: %08x\n", omap_plane->name,
irqstatus);
}
static const char *plane_names[] = {
[OMAP_DSS_GFX] = "gfx",
[OMAP_DSS_VIDEO1] = "vid1",
[OMAP_DSS_VIDEO2] = "vid2",
[OMAP_DSS_VIDEO3] = "vid3",
};
static const uint32_t error_irqs[] = {
[OMAP_DSS_GFX] = DISPC_IRQ_GFX_FIFO_UNDERFLOW,
[OMAP_DSS_VIDEO1] = DISPC_IRQ_VID1_FIFO_UNDERFLOW,
[OMAP_DSS_VIDEO2] = DISPC_IRQ_VID2_FIFO_UNDERFLOW,
[OMAP_DSS_VIDEO3] = DISPC_IRQ_VID3_FIFO_UNDERFLOW,
};
/* initialize plane */
struct drm_plane *omap_plane_init(struct drm_device *dev,
int id, enum drm_plane_type type)
{
struct omap_drm_private *priv = dev->dev_private;
struct drm_plane *plane;
struct omap_plane *omap_plane;
struct omap_overlay_info *info;
int ret;
DBG("%s: type=%d", plane_names[id], type);
omap_plane = kzalloc(sizeof(*omap_plane), GFP_KERNEL);
if (!omap_plane)
return ERR_PTR(-ENOMEM);
omap_plane->nformats = omap_framebuffer_get_formats(
omap_plane->formats, ARRAY_SIZE(omap_plane->formats),
dss_feat_get_supported_color_modes(id));
omap_plane->id = id;
omap_plane->name = plane_names[id];
plane = &omap_plane->base;
omap_plane->error_irq.irqmask = error_irqs[id];
omap_plane->error_irq.irq = omap_plane_error_irq;
omap_irq_register(dev, &omap_plane->error_irq);
ret = drm_universal_plane_init(dev, plane, (1 << priv->num_crtcs) - 1,
&omap_plane_funcs, omap_plane->formats,
omap_plane->nformats, type);
if (ret < 0)
goto error;
omap_plane_install_properties(plane, &plane->base);
/* get our starting configuration, set defaults for parameters
* we don't currently use, etc:
*/
info = &omap_plane->info;
info->rotation_type = OMAP_DSS_ROT_DMA;
info->rotation = OMAP_DSS_ROT_0;
info->global_alpha = 0xff;
info->mirror = 0;
/* Set defaults depending on whether we are a CRTC or overlay
* layer.
* TODO add ioctl to give userspace an API to change this.. this
* will come in a subsequent patch.
*/
if (type == DRM_PLANE_TYPE_PRIMARY)
omap_plane->info.zorder = 0;
else
omap_plane->info.zorder = id;
return plane;
error:
omap_irq_unregister(plane->dev, &omap_plane->error_irq);
kfree(omap_plane);
return NULL;
}